Sony HCD-VX77J / MHC-VX77 / MHC-VX77J Service Manual ▷ View online
57
7-24. IC BLOCK DIAGRAMS
IC102 BA5982FM (BD BOARD)
2
3
1
5
OPIN2 +
6
OPIN2 –
7
OPOUT2
8
GND
9
STBY1
4
BIAS IN
OPIN1 +
OPIN1 –
OPOUT1
11
12
13
14
10
PowVcc1
VO2 (–)
VO2 (+)
VO1 (–)
VO1 (+)
OPIN3 +
OPIN3 –
OPOUT3
GND
STBY2
PreVcc
OPIN4 +
OPIN4 –
OPOUT4
PowVcc2
VO3 (–)
VO3 (+)
VO4 (–)
VO4 (+)
Vcc
STAND BY
CH1 2 3
Level
Shift
Level
Shift
Level
Shift
Vcc
STAND BY
CH4
Vcc
Level
Shift
27
26
28
24
23
22
21
20
25
18
17
16
15
19
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
20k
10k
10k
10k
10k
10k
10k
10k
10k
10k
IC101 M61504FP-TP (MAIN BOARD)
+
–
+
–
3 (5) BAND
GRAPHIC EQUALIZER
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
21
22
23
24
64
63
62
61
60
59
58
57
56
55
45
46
47
48
49
50
51
52
53
54
44
43
42
41
25
26
27
28
29
30
31
32
33
34
40
39
38
37
36
35
80
79
78
77
76
75
74
73
72
71
65
66
67
68
69
70
SUR NF
KEYIN1
DPLIN1
RECAP
RECB1
F1A1
F1B1
F2A1
F2B1
F3A1
F3B1
FOUT1
FCIN1
TCA1
TCB1
TCC1
TCOUT1
SEFFIN1
SEFFA1
SEFFB1
SEFFD1
SEFFC1
SEFFOUT1
VOLIN1
MIC IN
KEYIN2
DPLIN2
RECA2
RECB2
F1A2
F1B2
F2A2
F2B2
F3A2
F3B2
FOUT2
TCIN2
TCA2
TCB2
TCC2
TCOUT2
SEFFIN2
SEFFA2
SEFFB2
SEFFC2
SEFFD2
SEFFOUT2
VOLIN2
BBA2
BUFIN2
IVSS
BUFOUT2
GND
DGND
LATCH
DATA
CLK
DVDD
L+ROUT
GND
BUFOUT1
IVDD
BUFIN1
BBA1
IN F1
IN E1
IN D1
IN C1
IN B1
IN A1
AVSS
SMUTE
SWOUT
AVCC
IN A2
IN B2
IN C2
IN D2
IN E2
7ch
SEL
SEL
SW3
SW1
SW2
SW2
SW1
SW3
7ch
SEL
SEL
IN F2
+
–
–
+
–
+
–
+
–
SOFT MUTE
L&H TONE
CONTROL
SOUND EFFECT
(EXCITER)
+
–
+
–
3 (5) BAND
GRAPHIC EQUALIZER
+
–
–
+
–
–
+
–
–
L&H TONE
CONTROL
SOUND EFFECT
(EXCITER)
+
–
+
–
+
–
–
+
–
+
–
–
+
–
+
–
–
+
–
–
+
–
+
–
58
IC602 BA3830F-E2 (PANEL BOARD)
2
3
14
1
f04
13 f05
12 f06
11 REC
LEVEL
10 VCC
15 f03
5
REC
NF
6
REC
IN
7
RESET
C
8
BIAS
C
9
GND1
4
16 f02
17 f01
18 RESET
R02
P01
LINE
NF
LINE
IN
REFFERENCE
CURRENT
BPF
DET
BPF
DET
BPF
DET
BPF
DET
DET
RESET
Bias
REFFERENCE
CURRENT
DET
DET
BPF
BPF
IC701 BA6956AN (DRIVER BOARD)
1
2
3
4
5
6
7
8
9
CONTROL LOGIC
TSD
VREF
O
UT2
O
UT1
RNF
VM
VCC
FIN
GND
RIN
IC103 LA2615 (MAIN BOARD)
VCC
6
5
1
2
3
4
7
8
14
15
16
GDR
GURP
AOG
LPFC
N.C
VOC
L-OUT
R-OUT
CONT1
CONT2
CONT3
GND
HPFC
VREF
L-IN
R-IN
11
12
10
13
9
ON/OFF
VREF
LEVEL
ATT
ANALOG
SURROUND
SW
A
B
SW
A
B
59
IC302 µPC1330HA (MAIN BOARD)
1
2
3
4
5
6
7
8
9
INVERTER
COMPARATER
SW R1
GND
SW P1
CONT
GND
VCC
SW P2
GND
SW R2
IC651 LC72130 (MAIN BOARD)
1
2
3
4
5
6
7
8
XIN
B03
CE
IFIN
AOUT
2
AIN1
AIN2
D1
CL
B04
D0
B01
I01
B02
XOUT
PD1
VSS
PD2
FMIN
AMIN
AOUT1
VDD
I02
B05
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
PHASE DETECTOR
CHARGE PUMP
SWALLOW COUNTER
1/16.1/17 4bits
SWALLOW COUNTER
1/16.1/17 4bits
POWER
ON
RESET
1/2
C B
I / F
I / F
REFERENCE
DIVIDER
REFERENCE
DIVIDER
C B
I / F
I / F
2
DATA SHIFT REGISTER
LATCH
IC601 BA1450 (MAIN BOARD)
1
2
3
4
5
6
7
8
9
10
11
12
16
17
18
19
20
21
22
23
24
15
14
13
AM
OSC
AM
MIX
AM IF
FM
IF
FM
DET
AM
DET
SD
DET
AGC
LED
DRIVER
COMP
SD
SW
VCO
PD
1/2
DECODER
VREG
1/2
FM IN
FM DET
TUNED
STEREO
IF OUT
R OUT
L OUT
AM/FM
FM/AM DET OUT
AM MPX IN
FM MPX IN
IN REQ MUTE
FM SD ADJ
VCC
GND
AM OSC OUT
AM OSC
VCO STOP
AM RF IN
AM IF IN
AM AGC
AM MIX OUT
FM BAND WIDTH
V . REG
60
6
5
1
2
3
4
7
8
TINT
GND
BGP
V OUT
COLOR OFFSET
COLOR
V IN
V+
HUE ADJUST
–X
+Ø
SATURATION
ADJUST
(COLOR BURST)
SATURATION
ADJUST
(COLOR BURST)
IC302 NJM2255M (VIDEO BOARD)
IC304 BA7665FS (VIDEO BOARD)
IC303 NJM2209M (VIDEO BOARD)
6
5
1
2
3
4
7
8
14
15
16 VCC1
OUTA1
OUTA2
VCC2
MIXOUT1
MIXOUT2
N.C
OUTB
MUTEA
INA
GND
GND
GND
N.C
INB
MUTEB
11
12
10
13
9
75
Ω
6dB
75
Ω
6dB
20k
Chroma Mute
75
Ω
6dB
Mute
6
5
1
2
3
4
7
8
14
N.C
GND
PHASE
DELAY
N.C
N.C
FREQUENCY
CHARACTERISTIC
COMPENSATION
VIDEO
OUTPUT
N.C
DIFFERENTIATION
INPUT
V+
CONTROL
N.C
DIFFERENTIATION
OUTPUT
11
VIDEO
INPUT
12
10
13
9
SECONDARY
DIFFERENTIATION
GAIN ADJ
LPF
LOWER
LIMITER
(1)
LOWER
LIMITER
(2)
SWITCH
CONTROL
CLAMP
SYNC
CHIP
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